I am usually on the other end of the scare, but this year I will be working in a haunted woods/corn maze.
What tips do you have to achieve the ultimate scare?

I was thinking about getting a hand-held strobe light so I can disorient my victims...

I have also heard that it is better to scare with anything but your voice (as it will get extremely tired after a few scares).

So, what do you recommend?!